help with valve adjustment, something odd

2 replies to this topic
  • 67speeda

Posted September 16, 2013 - 01:38 PM


So i am doing a valve adjustment. I have done a lot on yfz's but  this is my first on the yz450.


I measuered all the clearances and found 2 intake( .08 / .08 / .15) and one exhaust ( .15 / .20) to be slightly out.

I did the proper adjustment and now they are perfect however the 1 intake and 1 exhaust valve that were orginally in spec that i did not touch are now way out. I cant get a gauge in to even check the measurment (it may even be .000)


what happened!?


now my measurments are EX (.20) (.000) IN (.15) (.15) (.000)

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  • 67speeda

Posted September 16, 2013 - 03:03 PM


fyi make sure the shims are in the right place



problem fixed

  • ShsFunny

Posted September 18, 2013 - 05:17 AM


I just ran into this to.......Turns out the valve shim was out of place.

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